„Capacitors” változatai közötti eltérés

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== Tri-stating ==
== Tri-stating ==


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{{#ev:youtube|1VacYW69NMA}}
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1:05 <br />
1:05  
when you set a pin to '''input''', you want that to be a '''very high resistance''', right? What's the input impedance of an amplifier?
when you set a pin to input,
you want that to be a very high resistance, right? What's the input impedance of an amplifier?
PROFESSOR 2: Very high.
PROFESSOR 2: Very high.
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1:16
1:16  
If you set it as an output mode, then you're driving-- what you then be looking at, really?
If you set it as an '''output mode''', then you're driving-- what you then be looking at, really?
PROFESSOR 2: Very low resistance.
PROFESSOR 2: '''Very low resistance.'''


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1:32 PROFESSOR 2: OK, so when we're actually setting the pins, in the code,
1:32 PROFESSOR 2: OK, so when we're actually setting the pins, in the code,
to be inputs or outputs, we're actually changing the impedance that's the pin.
to be inputs or outputs, we're actually changing the impedance that's the pin.


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1:46 Yeah, I was connecting the supply wire to the capacitor,
1:46 Yeah, I was connecting the supply wire to the capacitor,
pulling it off by hand.
pulling it off by hand.
Pulling it off by hand is like putting a really high impedance there
Pulling it off by hand is like putting a really high impedance there
between those.
between those.
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<gallery>
EE40LX_01.png|Képaláírás1
EE40LX_02.png|Képaláírás2
EE40LX_03.png|Képaláírás1
EE40LX_04.png|Képaláírás2
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[https://courses.edx.org/courses/course-v1:BerkeleyX+EE40LX+2T2015/courseware/2c7d2b788bc34067875d416e54c53949/65f13e44250b4b49a559872cb56d8cae/ BerkeleyX+EE40LX+2T2015/]
[https://courses.edx.org/courses/course-v1:BerkeleyX+EE40LX+2T2015/courseware/2c7d2b788bc34067875d416e54c53949/65f13e44250b4b49a559872cb56d8cae/ BerkeleyX+EE40LX+2T2015/]

A lap jelenlegi, 2022. június 15., 21:15-kori változata


Kondenzátorok

Tri-stating

{{#ev:youtube|1VacYW69NMA}}
1:05
when you set a pin to input, you want that to be a very high resistance, right? What's the input impedance of an amplifier? PROFESSOR 2: Very high.

1:16 If you set it as an output mode, then you're driving-- what you then be looking at, really? PROFESSOR 2: Very low resistance.


1:32 PROFESSOR 2: OK, so when we're actually setting the pins, in the code, to be inputs or outputs, we're actually changing the impedance that's the pin.


1:46 Yeah, I was connecting the supply wire to the capacitor, pulling it off by hand. Pulling it off by hand is like putting a really high impedance there between those.




BerkeleyX+EE40LX+2T2015/